diff options
Diffstat (limited to 'drivers/i2c/zynq_i2c.c')
| -rw-r--r-- | drivers/i2c/zynq_i2c.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/drivers/i2c/zynq_i2c.c b/drivers/i2c/zynq_i2c.c index ce2d23f..70a9aea 100644 --- a/drivers/i2c/zynq_i2c.c +++ b/drivers/i2c/zynq_i2c.c @@ -74,7 +74,8 @@ static struct zynq_i2c_registers *zynq_i2c = (struct zynq_i2c_registers *)ZYNQ_I2C_BASE; /* I2C init called by cmd_i2c when doing 'i2c reset'. */ -void i2c_init(int requested_speed, int slaveadd) +static void zynq_i2c_init(struct i2c_adapter *adap, int requested_speed, + int slaveadd) { /* 111MHz / ( (3 * 17) * 22 ) = ~100KHz */ writel((16 << ZYNQ_I2C_CONTROL_DIV_B_SHIFT) | @@ -151,7 +152,7 @@ static u32 zynq_i2c_wait(u32 mask) * I2C probe called by cmd_i2c when doing 'i2c probe'. * Begin read, nak data byte, end. */ -int i2c_probe(u8 dev) +static int zynq_i2c_probe(struct i2c_adapter *adap, u8 dev) { /* Attempt to read a byte */ setbits_le32(&zynq_i2c->control, ZYNQ_I2C_CONTROL_CLR_FIFO | @@ -170,7 +171,8 @@ int i2c_probe(u8 dev) * I2C read called by cmd_i2c when doing 'i2c read' and by cmd_eeprom.c * Begin write, send address byte(s), begin read, receive data bytes, end. */ -int i2c_read(u8 dev, uint addr, int alen, u8 *data, int length) +static int zynq_i2c_read(struct i2c_adapter *adap, u8 dev, uint addr, + int alen, u8 *data, int length) { u32 status; u32 i = 0; @@ -235,7 +237,8 @@ int i2c_read(u8 dev, uint addr, int alen, u8 *data, int length) * I2C write called by cmd_i2c when doing 'i2c write' and by cmd_eeprom.c * Begin write, send address byte(s), send data bytes, end. */ -int i2c_write(u8 dev, uint addr, int alen, u8 *data, int length) +static int zynq_i2c_write(struct i2c_adapter *adap, u8 dev, uint addr, + int alen, u8 *data, int length) { u8 *cur_data = data; @@ -275,16 +278,16 @@ int i2c_write(u8 dev, uint addr, int alen, u8 *data, int length) return 0; } -int i2c_set_bus_num(unsigned int bus) +static unsigned int zynq_i2c_set_bus_speed(struct i2c_adapter *adap, + unsigned int speed) { - /* Only support bus 0 */ - if (bus > 0) - return -1; - return 0; -} + if (speed != 1000000) + return -EINVAL; -unsigned int i2c_get_bus_num(void) -{ - /* Only support bus 0 */ return 0; } + +U_BOOT_I2C_ADAP_COMPLETE(zynq_0, zynq_i2c_init, zynq_i2c_probe, zynq_i2c_read, + zynq_i2c_write, zynq_i2c_set_bus_speed, + CONFIG_SYS_I2C_ZYNQ_SPEED, CONFIG_SYS_I2C_ZYNQ_SLAVE, + 0) |